One of the moon rabbits who fled from the Moon to Earth as a refugee from the "Lunar War" between the two worlds that began in 1969 A.D. after the Apollo 11 "invasion". Making her way to Gensokyo, she was surprised to meet the notorious fugitives Kaguya Houraisan and Eirin Yagokoro, and asked for asylum in Eientei. In exchange, she works for and protects Kaguya and Eirin.